The short answer
ANURAVA bowls are cast in copper–tin bell metal, heated, repeatedly hammered and raised to shape the wall, trued, finished and then individually listened to and measured. Bankura district has an independently documented bell-metal tradition: the GI Registry lists both Bankura Brass & Bell Metals Utensils (application 1034, covering utensils) and the separately registered Bengal Singing Bowl (application 991, covering singing bowls made in Pukhuria). ANURAVA, based in Chhatna, does not claim GI authorisation under either registration.
Measured by ANURAVATraditional / contemporary association
What is independently documented
Traditional / contemporary association
India’s Geographical Indications Registry records Bankura Brass & Bell Metals Utensils, application 1034, as a registered geographical indication, with the District Industries Centre as applicant and West Bengal as the geographical area. That is independent, checkable evidence that Bankura has a recognised brass and bell-metal craft tradition.
What the GI registrations mean for buyers
Bankura Brass & Bell Metals Utensils (1034) covers utensils. A separate GI, Bengal Singing Bowl (991), was registered in March 2026 for singing bowls made by the Pukhuria Co-Operative Industrial Society in Simlapal block, Bankura. That registration does not make any particular maker outside Pukhuria GI-authorised, and neither GI is evidence of a centuries-old singing-bowl tradition in the district. ANURAVA states these registrations for what they are: regional craft context. The Bengal Singing Bowl GI is held by the Pukhuria co-operative; ANURAVA, based in Chhatna, does not claim GI authorisation.
The ANURAVA process
- Casting the initial form in copper–tin bell metal.
- Heating, to bring the metal into a workable condition.
- Repeated hammering and raising, which forms the wall and works the material.
- Truing the form.
- Finishing the surface to the specified finish.
- Listening to each finished piece individually, and measuring it.
Why the process shows up in the sound
Acoustics / physics
Repeated heating and hammering is not only shaping — it changes the condition of the metal, and it produces a wall whose thickness varies slightly around the circumference. That variation is what splits paired modes and produces the beating characteristic of hand-raised bowls. The making method is audible in the finished instrument, which is precisely why each piece is measured rather than assumed.
Frequently asked
How are ANURAVA bowls made in Bankura?
Cast in copper–tin bell metal, heated, repeatedly hammered and raised to form the wall, trued, finished, then individually listened to and measured.
Are Bankura bowls hand hammered?
ANURAVA’s are. The wall is formed by repeated heating and hammering rather than by machine spinning, which is also why individual pieces vary and are measured separately.
What is Bankura’s bell-metal tradition?
Bankura has a recognised brass and bell-metal craft tradition: India’s GI Registry lists Bankura Brass & Bell Metals Utensils as a registered geographical indication for West Bengal. That registration covers utensils. A separate GI, Bengal Singing Bowl (991), was registered in 2026 for singing bowls made in Pukhuria.
Sources & methodology
- Government registerGeographical Indications Registry, applications 991 and 1034Intellectual Property IndiaGI 1034 (Bankura Brass & Bell Metals Utensils) covers utensils. GI 991 (Bengal Singing Bowl) was registered 27 March 2026 to Pukhuria Co-Operative Industrial Society Ltd, Simlapal block, Bankura, for singing bowls.
- First-partyANURAVA Acoustic Method v1.0 and Sound Passport recordsANURAVAFirst-party measurement protocol and per-instrument documentation.
Written and reviewed by ANURAVA. Where a statement rests on a musical convention or a traditional association rather than on measurement, it is labelled as such in the text above.